• Stimulated raman scattering from plasma modes in magnetoactive semiconductors

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      https://www.ias.ac.in/article/fulltext/pram/016/01/0099-0106

    • Keywords

       

      Stimulated Raman scattering; parametric instability; piezoelectric semiconductor; plasma modes

    • Abstract

       

      Stimulated scattering off electron plasma mode is investigated analytically for the case when the pump wave is an intense circularly polarised electromagnetic wave propagating parallel to a homogeneous dc magnetic field in an isotropic semiconductor-plasma. The threshold electric field of the pump necessary for the stimulated Raman scattering and the growth rate of the parametrically unstable mode have been obtained for two cases (i)B0=0 and (ii) B0 ≠ 0. It is seen that the magnetic field does not significantly affect the threshold electric field as well as the growth rate provided the cyclotron frequency is small compared to the frequency of the pump wave. The threshold conditions are also found to be insensitive to the electron thermal velocity.

    • Author Affiliations

       

      S Guha1 N Apte1 2

      1. Department of Physics, Ravishankar University, Raipur - 492 010, India
      2. School of Studies in Physics, Vikram University, Ujjain - 456 331, India
    • Dates

       
  • Pramana – Journal of Physics | News

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